Stats

  • Locked Locked
  • Replies 2
  • Subscribers 125
  • Views 14970
  • Members are here 0
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Multi Dimensional Plot using parametric analysis

Nader Fathy

Hello,

I am using parametric analysis of noise simulation with three variables (L, Vdd, Vg) in the simple circuit shown below (L=60nm to 3um, 20pts), (Vdd=0 to 1, 10pts), (Vg=0 to 1, 51pts).

The parametric analysis looped on all variables correctly as shown below, but when I try to plot the thermal noise, the output family of curves are shown for the first value of L=60nm only with all combinations of Vdd and Vg.

Is there any way I can plot all curves with all variations (L, Vdd, & Vg) in Cadence Virtuoso ADE L? 

I am using the following versions:

MMSIM Version: 13.1.1.660.isr18

Virtuoso Version: IC6.1.8-64b.500.1

irun Version: 14.10-s039

Spectre Version: 18.1.0.421.isr9

Many thanks in advance!

Parents
  • Andrew Beckett

    Initially I thought this was just a matter of not having scrolled the legend down enough, but I can reproduce it (I decided in the end to not simulate all 10,200 points that you ran; I can reproduce it with 20x5x5=500 runs). It seems something specific to plotting the family of noise contributor results; for ADE L I only get 25 plots (out of 500) and for ADE Explorer I get 75. If I plot the total output noise, I get that for all 500 points in my sweep.

    I'm not sure why (BTW, your graph was confusing because it's plotting the id noise contribution from a pch transistor, but your circuit has an nch transistor - but I guessed the idea nevertheless).

    I filed CCR 2151853 to get this fixed; you would be best to contact customer support and ask for a duplicate to be filed on your behalf so that it can be tracked. I'm hoping it will still be prioritised anyway, but it always helps having a real customer behind it who is facing the issue.

    Regards,

    Andrew.

  • Nader Fathy
    in reply to Andrew Beckett

    Thank you so much for your help!

    I will file a duplicate DR to track this indeed.

    Kindest Regards,

    Nader Fathy

Reply
  • Nader Fathy
    in reply to Andrew Beckett

    Thank you so much for your help!

    I will file a duplicate DR to track this indeed.

    Kindest Regards,

    Nader Fathy

Children
No Data

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.